Commit Graph

61 Commits

Author SHA1 Message Date
Matthew Macy
9f0a21e641
Add FreeBSD support to OpenZFS
Add the FreeBSD platform code to the OpenZFS repository.  As of this
commit the source can be compiled and tested on FreeBSD 11 and 12.
Subsequent commits are now required to compile on FreeBSD and Linux.
Additionally, they must pass the ZFS Test Suite on FreeBSD which is
being run by the CI.  As of this commit 1230 tests pass on FreeBSD
and there are no unexpected failures.

Reviewed-by: Sean Eric Fagan <sef@ixsystems.com>
Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Co-authored-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #898 
Closes #8987
2020-04-14 11:36:28 -07:00
Matthew Macy
d31277abb1 OpenZFS restructuring - libspl
Factor Linux specific pieces out of libspl.

Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: Sean Eric Fagan <sef@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #9336
2019-10-02 10:39:48 -07:00
Matthew Macy
3283f137d7 OpenZFS restructuring - zpool
Factor Linux specific functions out of the zpool command.
    
Reviewed-by: Allan Jude <allanjude@freebsd.org>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: Sean Eric Fagan <sef@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: loli10K <ezomori.nozomu@gmail.com>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #9333
2019-09-30 12:16:06 -07:00
Ryan Moeller
73d7820bba Use signed types to prevent subtraction overflow
The difference between the sizes could be positive or negative. Leaving
the types as unsigned means the result overflows when the difference is
negative and removing the labs() means we'll have introduced a bug. The
subtraction results in the correct value when the unsigned integer is
interpreted as a signed integer by labs().

Clang doesn't see that we're doing a subtraction and abusing the types.
It sees the result of the subtraction, an unsigned value, being passed
to an absolute value function and emits a warning which we treat as an
error.

Reviewed by: Youzhong Yang <youzhong@gmail.com>
Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@ixsystems.com>
Closes #9355
2019-09-22 15:27:53 -07:00
Andrea Gelmini
ad0b23b14a Fix typos in cmd/
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Closes #9234
2019-08-30 09:43:30 -07:00
Michael Niewöhner
0b755ec3d5 Fix memory leak in check_disk()
Reviewed-by: Allan Jude <allanjude@freebsd.org>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com>
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Closes #8897  
Closes #8911
2019-06-19 11:53:37 -07:00
LOLi
0cd5c941d0 zpool: allow split with whole-disk devices
This change allows 'zpool split' to work with whole-disk devices and
updates the ZFS Test Suite with a new script to exercise this
functionality.

Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #6643 
Closes #8133
2018-11-20 10:22:53 -08:00
Don Brady
e89f1295d4 Add libzutil for libzfs or libzpool consumers
Adds a libzutil for utility functions that are common to libzfs and
libzpool consumers (most of what was in libzfs_import.c).  This
removes the need for utilities to link against both libzpool and
libzfs.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Don Brady <don.brady@delphix.com>
Closes #8050
2018-11-05 11:22:33 -08:00
LOLi
2e55034471 zpool: allow sharing of spare device among pools
ZFS allows, by default, sharing of spare devices among different pools;
this commit simply restores this functionality for disk devices and
adds an additional tests case to the ZFS Test Suite to prevent future
regression.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #7999
2018-10-17 11:21:07 -07:00
Don Brady
cc99f275a2 Pool allocation classes
Allocation Classes add the ability to have allocation classes in a
pool that are dedicated to serving specific block categories, such
as DDT data, metadata, and small file blocks. A pool can opt-in to
this feature by adding a 'special' or 'dedup' top-level VDEV.

Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Alek Pinchuk <apinchuk@datto.com>
Reviewed-by: Håkan Johansson <f96hajo@chalmers.se>
Reviewed-by: Andreas Dilger <andreas.dilger@chamcloud.com>
Reviewed-by: DHE <git@dehacked.net>
Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com>
Reviewed-by: Gregor Kopka <gregor@kopka.net>
Reviewed-by: Kash Pande <kash@tripleback.net>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Don Brady <don.brady@delphix.com>
Closes #5182
2018-09-05 18:33:36 -07:00
Troels Nørgaard
94370f5955 Default ashift for Amazon EC2 NVMe devices
Add a default 4 KiB ashift for Amazon EC2 NVMe devices on instances with
NVMe ephemeral devices, such as the types c5d, f1, i3 and m5d.
As per the official documentation [1] a 4096 byte blocksize should be
used to match the underlying hardware.

The string was identified via:

$ sudo sginfo -M /dev/nvme0n1
INQUIRY response (cmd: 0x12)
----------------------------
Device Type                        0
Vendor:                    NVMe
Product:                   Amazon EC2 NVMe
Revision level:

$ lsblk -io KNAME,TYPE,SIZE,MODEL
KNAME   TYPE    SIZE MODEL
nvme0n1 disk  442.4G Amazon EC2 NVMe Instance Storage

[1] https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/
    storage-optimized-instances.html
    Retrived 2018-07-03

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Giuseppe Di Natale <guss80@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Troels Nørgaard <tnn@tradeshift.com>
Closes #7676
2018-07-06 16:15:19 -07:00
LOLi
390d679acd Fix 'zpool add' handling of nested interior VDEVs
When replacing a faulted device which was previously handled by a spare
multiple levels of nested interior VDEVs will be present in the pool
configuration; the following example illustrates one of the possible
situations:

   NAME                          STATE     READ WRITE CKSUM
   testpool                      DEGRADED     0     0     0
     raidz1-0                    DEGRADED     0     0     0
       spare-0                   DEGRADED     0     0     0
         replacing-0             DEGRADED     0     0     0
           /var/tmp/fault-dev    UNAVAIL      0     0     0  cannot open
           /var/tmp/replace-dev  ONLINE       0     0     0
         /var/tmp/spare-dev1     ONLINE       0     0     0
       /var/tmp/safe-dev         ONLINE       0     0     0
   spares
     /var/tmp/spare-dev1         INUSE     currently in use

This is safe and allowed, but get_replication() needs to handle this
situation gracefully to let zpool add new devices to the pool.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #6678 
Closes #6996
2017-12-28 10:15:32 -08:00
Brian Behlendorf
ea39f75f64
Fix 'zpool create|add' replication level check
When the pool configuration contains a hole due to a previous device
removal ignore this top level vdev.  Failure to do so will result in
the current configuration being assessed to have a non-uniform
replication level and the expected warning will be disabled.

The zpool_add_010_pos test case was extended to cover this scenario.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #6907 
Closes #6911
2017-12-04 11:50:35 -08:00
adisbladis
f8cd871a01 Use ashift=12 by default on SSDSC2BW48 disks
Currently the 480GB models of this disk do not use ashift=12 by
default.  SSDSC2BW48 is also optimized for 4k blocks.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: adisbladis <adis@blad.is>
Closes #6774
2017-10-23 11:00:45 -07:00
Chunwei Chen
83a5e4d6b9 Fix don't zero_label when replace with spare
When replacing a disk with non-wholedisk spare, we shouldn't zero_label
it. The wholedisk case already skip it. In fact, zero_label function
will fail saying device busy because it's already opened exclusively,
but since there's no error checking, the replace command will succeed,
causing great confusion.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Closes #6369
2017-07-24 12:49:27 -07:00
Håkan Johansson
6eb6073a04 Allow add of raidz and mirror with same redundancy
Allow new members to be added to a pool mixing raidz and mirror vdevs
without giving -f, as long as they have matching redundancy.  This case
was missed in #5915, which only handled zpool create.

Add zfstest zpool_add_010_pos.ksh, with test of zpool create
followed by zpool add of mixed raidz and mirror vdevs.

Add some more mixed raidz and mirror cases to zpool_create_006_pos.ksh.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Haakan Johansson <f96hajo@chalmers.se>
Issue #5915 
Closes #6181
2017-06-05 13:53:09 -07:00
Brian Behlendorf
8c54ddd33a Enable additional test cases
Enable additional test cases, in most cases this required a few
minor modifications to the test scripts.  In a few cases a real
bug was uncovered and fixed.  And in a handful of cases where pools
are layered on pools the test case will be skipped until this is
supported.  Details below for each test case.

* zpool_add_004_pos - Skip test on Linux until adding zvols to pools
  is fully supported and deadlock free.

* zpool_add_005_pos.ksh - Skip dumpadm portion of the test which isn't
  relevant for Linux.  The find_vfstab_dev, find_mnttab_dev, and
  save_dump_dev functions were updated accordingly for Linux.  Add
  O_EXCL to the in-use check to prevent the -f (force) option from
  working for mounted filesystems and improve the resulting error.

* zpool_add_006_pos - Update test case such that it doesn't depend
  on nested pools.  Switch to truncate from mkfile to reduce space
  requirements and speed up the test case.

* zpool_clear_001_pos - Speed up test case by filling filesystem to
  25% capacity.

* zpool_create_002_pos, zpool_create_004_pos - Use sparse files for
  file vdevs in order to avoid increasing the partition size.

* zpool_create_006_pos - 6ba1ce9 allows raidz+mirror configs with
  similar redundancy.  Updating the valid_args and forced_args cases.

* zpool_create_008_pos - Disable overlapping partition portion.

* zpool_create_011_neg - Fix to correctly create the extra partition.
  Modified zpool_vdev.c to use fstat64_blk() wrapper which includes
  the st_size even for block devices.

* zpool_create_012_neg - Updated to properly find swap devices.

* zpool_create_014_neg, zpool_create_015_neg - Updated to use
  swap_setup() and swap_cleanup() wrappers which do the right thing
  on Linux and Illumos.  Removed '-n' option which succeeds under
  Linux due to differences in the in-use checks.

* zpool_create_016_pos.ksh - Skipped test case isn't useful.

* zpool_create_020_pos - Added missing / to cleanup() function.
  Remove cache file prior to test to ensure a clean environment
  and avoid false positives.

* zpool_destroy_001_pos - Removed test case which creates a pool on
  a zvol.  This is more likely to deadlock under Linux and has never
  been completely supported on any platform.

* zpool_destroy_002_pos - 'zpool destroy -f' is unsupported on Linux.
  Mount point must not be busy in order to unmount them.

* zfs_destroy_001_pos - Handle EBUSY error which can occur with
  volumes when racing with udev.

* zpool_expand_001_pos, zpool_expand_003_neg - Skip test on Linux
  until adding zvols to pools is fully supported and deadlock free.
  The test could be modified to use loop-back devices but it would
  be preferable to use the test case as is for improved coverage.

* zpool_export_004_pos - Updated test case to such that it doesn't
  depend on nested pools.  Normal file vdev under /var/tmp are fine.

* zpool_import_all_001_pos - Updated to skip partition 1, which is
  known as slice 2, on Illumos.  This prevents overwriting the
  default TESTPOOL which was causing the failure.

* zpool_import_002_pos, zpool_import_012_pos - No changes needed.

* zpool_remove_003_pos - No changes needed

* zpool_upgrade_002_pos, zpool_upgrade_004_pos - Root cause addressed
  by upstream OpenZFS commit 3b7f360.

* zpool_upgrade_007_pos - Disabled in test case due to known failure.
  Opened issue https://github.com/zfsonlinux/zfs/issues/6112

* zvol_misc_002_pos - Updated to to use ext2.

* zvol_misc_001_neg, zvol_misc_003_neg, zvol_misc_004_pos,
  zvol_misc_005_neg, zvol_misc_006_pos - Moved to skip list, these
  test case could be updated to use Linux's crash dump facility.

* zvol_swap_* - Updated to use swap_setup/swap_cleanup helpers.
  File creation switched from /tmp to /var/tmp.  Enabled minimal
  useful tests for Linux, skip test cases which aren't applicable.

Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: loli10K <ezomori.nozomu@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #3484
Issue #5634
Issue #2437
Issue #5202
Issue #4034
Closes #6095
2017-05-11 14:27:57 -07:00
LOLi
dddef7d600 More ashift improvements
This commit allow higher ashift values (up to 16) in 'zpool create'

The ashift value was previously limited to 13 (8K block) in b41c990
because the limited number of uberblocks we could fit in the
statically sized (128K) vdev label ring buffer could prevent the
ability the safely roll back a pool to recover it.

Since b02fe35 the largest uberblock size we support is 8K: this
allow us to store a minimum number of 16 uberblocks in the vdev
label, even with higher ashift values.

Additionally change 'ashift' pool property behaviour: if set it will
be used as the default hint value in subsequent vdev operations
('zpool add', 'attach' and 'replace'). A custom ashift value can still
be specified from the command line, if desired.

Finally, fix a bug in add-o_ashift.ksh caused by a missing variable.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #2024 
Closes #4205 
Closes #4740 
Closes #5763
2017-05-03 09:31:05 -07:00
Yuri Pankov
dbb38f6605 OpenZFS 6865 - want zfs-tests cases for zpool labelclear command
Authored by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: John Kennedy <john.kennedy@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Reviewed-by: loli10K <ezomori.nozomu@gmail.com>
Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>

Porting Notes:
- Updated 'zpool labelclear' and 'zdb -l' such that they attempt
  to find a vdev given solely its short name.  This behavior is
  consistent with the upstream OpenZFS code and the test cases
  depend on it.  The actual implementation differs slightly due
  to device naming conventions on Linux.
- auto_online_001_pos, auto_replace_001_pos and add-o_ashift
  test cases updated to expect failure when no label exists.
- read_efi_label() and zpool_label_disk_check() are read-only
  operations and should use O_RDONLY at open time to enforce this.
- zpool_label_disk() and zpool_relabel_disk() write the partition
  information using O_DIRECT an fsync() and page cache invalidation
  to ensure a consistent view of the device.
- dump_label() in zdb should invalidate the page cache in order
  to get the authoritative label from disk.

OpenZFS-issue: https://www.illumos.org/issues/6865
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/c95076c
Closes #5981
2017-04-11 09:54:39 -07:00
Håkan Johansson
6ba1ce9ee9 Accept raidz and mirror with similar redundancy
Allow a pool to be created with both raidz and mirror members,
without giving -f, as long as they have matching redundancy.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Haakan T Johansson <f96hajo@chalmers.se>
Closes #5915
2017-04-05 15:21:13 -07:00
LOLi
ff61d1a495 Check ashift validity in 'zpool add'
df83110 added the ability to specify a custom "ashift" value from the command
line in 'zpool add' and 'zpool attach'. This commit adds additional checks to
the provided ashift to prevent invalid values from being used, which could
result in disastrous consequences for the whole pool.

Additionally provide ASHIFT_MAX and ASHIFT_MIN definitions in spa.h.

Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #5878
2017-03-28 17:21:11 -07:00
George Melikov
935550f1bb OpenZFS 6872 - zfs libraries should not allow uninitialized variables
Porting notes:
- Many changes were already made in ZoL (for ex. in d4ed66734).

Authored by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Ported-by: George Melikov <mail@gmelikov.ru>

OpenZFS-issue: https://www.illumos.org/issues/6872
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/f83b46b
Closes #5640
2017-01-24 09:23:34 -08:00
Brian Behlendorf
8e89657956 OpenZFS 6551 - cmd/zpool: cleanup gcc warnings
Porting Notes:
- Many of the fixes proposed by this patch were already applied.
In the cases where a different but equivalent fix was made the
code was updated with the OpenZFS version to minimize differences.
- The zpool_get_vdev_by_name() function was previously removed
by commit  235db0a.

Authored by: Igor Kozhukhov <ikozhukhov@gmail.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Andy Stormont <astormont@racktopsystems.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Haakan T Johansson <f96hajo@chalmers.se>
Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>

OpenZFS-issue: https://www.illumos.org/issues/6551
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/b327cd3
Closes #5590
2017-01-17 14:42:56 -08:00
GeLiXin
8c8cf8a2d8 Fix coverity defects: CID 147639
When array is passed as a parameter it degenerates into a
pointer so the sizeof(path) in is_shorthand_path() and always
get return value of 8, instead of the string length we want.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: GeLiXin <ge.lixin@zte.com.cn>
Closes #5198
2016-10-10 15:30:22 -07:00
luozhengzheng
aecdc70604 Fix coverity defects: CID 147448, 147449, 147450, 147453, 147454
coverity scan CID:147448,type: unchecked return value
coverity scan CID:147449,type: unchecked return value
coverity scan CID:147450,type: unchecked return value
coverity scan CID:147453,type: unchecked return value
coverity scan CID:147454,type: unchecked return value

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: luozhengzheng <luo.zhengzheng@zte.com.cn>
Closes #5206
2016-10-02 11:24:54 -07:00
cao
9ec0403d6a Fix coverity defects: CID 147610, 147608, 147607
coverity scan CID:147610, Type: Resource leak.
coverity scan CID:147608, Type: Resource leak.
coverity scan CID:147607, Type: Resource leak.

Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: cao.xuewen <cao.xuewen@zte.com.cn>
Closes #5143
2016-09-29 12:11:44 -07:00
luozhengzheng
5df39c1e43 Fix coverity defects
1.coverity scan CID:147445 function zfs_do_send in zfs_main.c
Buffer not null terminated (BUFFER_SIZE_WARNING)

2.coverity scan CID:147443 function zfs_do_bookmark in zfs_main.c
Buffer not null terminated (BUFFER_SIZE_WARNING)

3.coverity scan CID:147660 function main in zinject.c
Passing string argv[0] of unknown size to strcpy
By the way, the leak of g_zfs is fixed.

4.coverity scan CID: 147442 function make_disks in zpool_vdev.c
Buffer not null terminated (BUFFER_SIZE_WARNING)

5.coverity scan CID: 147661 function main in dir_rd_update.c
passing string cp1 of unknown size to strcpy

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: luozhengzheng <luo.zhengzheng@zte.com.cn>
Closes #5130
2016-09-22 15:55:41 -07:00
liuhuang
bd296705d5 Fix memory/fd leak in check_file() and is_spare()
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: liuhuang <liu.huang@zte.com.cn>
Closes #5085
2016-09-12 09:44:26 -07:00
Brian Behlendorf
8a39abaafa Multi-thread 'zpool import' for blkid
Commit 519129f added support to multi-thread 'zpool import' for
the case where block devices are scanned for under /dev/.  This
commit generalizes that logic and applies it to the case where
device names are acquired from libblkid.

The zpool_find_import_scan() and zpool_find_import_blkid()
functions create an AVL tree containing each device name.  Each
entry in this tree is dispatched to a taskq where the function
zpool_open_func() validates the device by opening it and reading
the label.  This may result in additional entries being added
to the tree and those device paths being verified.

This is largely how the upstream OpenZFS code behaves but due to
significant differences the non-Linux code has been dropped for
readability.  Additionally, this code makes use of taskqs and
kmutexs which are normally not available to the command line tools.
Special care has been taken to allow their use in the import
functions.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Olaf Faaland <faaland1@llnl.gov>
Closes #4794
2016-07-27 13:38:46 -07:00
Gvozden Neskovic
a64f903b06 Fixes for issues found with cppcheck tool
The patch fixes small number of errors/false positives reported by `cppcheck`,
static analysis tool for C/C++.

cppcheck 1.72

$ cppcheck . --force --quiet
[cmd/zfs/zfs_main.c:4444]: (error) Possible null pointer dereference: who_perm
[cmd/zfs/zfs_main.c:4445]: (error) Possible null pointer dereference: who_perm
[cmd/zfs/zfs_main.c:4446]: (error) Possible null pointer dereference: who_perm
[cmd/zpool/zpool_iter.c:317]: (error) Uninitialized variable: nvroot
[cmd/zpool/zpool_vdev.c:1526]: (error) Memory leak: child
[lib/libefi/rdwr_efi.c:1118]: (error) Memory leak: efi_label
[lib/libuutil/uu_misc.c:207]: (error) va_list 'args' was opened but not closed by va_end().
[lib/libzfs/libzfs_import.c:1554]: (error) Dangerous usage of 'diskname' (strncpy doesn't always null-terminate it).
[lib/libzfs/libzfs_sendrecv.c:3279]: (error) Dereferencing 'cp' after it is deallocated / released
[tests/zfs-tests/cmd/file_write/file_write.c:154]: (error) Possible null pointer dereference: operation
[tests/zfs-tests/cmd/randfree_file/randfree_file.c:90]: (error) Memory leak: buf
[cmd/zinject/zinject.c:1068]: (error) Uninitialized variable: dataset
[module/icp/io/sha2_mod.c:698]: (error) Uninitialized variable: blocks_per_int64

Signed-off-by: Gvozden Neskovic <neskovic@gmail.com>
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1392
2016-07-27 13:31:22 -07:00
Josef 'Jeff' Sipek
8a5fc74880 Illumos 6659 - nvlist_free(NULL) is a no-op
6659 nvlist_free(NULL) is a no-op
Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed by: Marcel Telka <marcel@telka.sk>
Approved by: Robert Mustacchi <rm@joyent.com>

References:
  https://www.illumos.org/issues/6659
  https://github.com/illumos/illumos-gate/commit/aab83bb

Ported-by: David Quigley <dpquigl@davequigley.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #4566
2016-04-27 15:58:23 -07:00
Brian Behlendorf
2d82ea8b11 Use udev for partition detection
When ZFS partitions a block device it must wait for udev to create
both a device node and all the device symlinks.  This process takes
a variable length of time and depends on factors such how many links
must be created, the complexity of the rules, etc.  Complicating
the situation further it is not uncommon for udev to create and
then remove a link multiple times while processing the udev rules.

Given the above, the existing scheme of waiting for an expected
partition to appear by name isn't 100% reliable.  At this point
udev may still remove and recreate think link resulting in the
kernel modules being unable to open the device.

In order to address this the zpool_label_disk_wait() function
has been updated to use libudev.  Until the registered system
device acknowledges that it in fully initialized the function
will wait.  Once fully initialized all device links are checked
and allowed to settle for 50ms.  This makes it far more likely
that all the device nodes will exist when the kernel modules
need to open them.

For systems without libudev an alternate zpool_label_disk_wait()
was updated to include a settle time.  In addition, the kernel
modules were updated to include retry logic for this ENOENT case.
Due to the improved checks in the utilities it is unlikely this
logic will be invoked.  However, if the rare event it is needed
it will prevent a failure.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Richard Laager <rlaager@wiktel.com>
Closes #4523
Closes #3708
Closes #4077
Closes #4144
Closes #4214
Closes #4517
2016-04-25 11:13:20 -07:00
Don Brady
39fc0cb557 Add support for devid and phys_path keys in vdev disk labels
This is foundational work for ZED.

Updates a leaf vdev's persistent device strings on Linux platform

* only applies for a dedicated leaf vdev (aka whole disk)
* updated during pool create|add|attach|import
* used for matching device matching during auto-{online,expand,replace}
* stored in a leaf disk config label (i.e. alongside 'path' NVP)
* can opt-out using env var ZFS_VDEV_DEVID_OPT_OUT=YES

Some examples:

    path: '/dev/sdb1'
    devid: 'scsi-350000394a8ca4fbc-part1'
    phys_path: 'pci-0000:04:00.0-sas-0x50000394a8ca4fbf-lun-0'

    path: '/dev/mapper/mpatha'
    devid: 'dm-uuid-mpath-35000c5006304de3f'

Signed-off-by: Don Brady <don.brady@intel.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2856
Closes #3978
Closes #4416
2016-03-31 13:45:53 -07:00
Brian Behlendorf
a9977b37ca Relax MBR partition scanning requirement
When checking a whole disk to see if it can be safely added to
the pool a variety of checks are done.  One of those checks is
to attempt to determine the partition information and scan all
the partitions for existing filesystems.

Since ZoL contains a EFI library this partition scanning is
easy to do for GPT partitioned disks.  However, for non-GPT
partitioned disks (MBR/EBR) things are a bit harder.  The lack of
a convenient library means non-GPT partitioned disks will not
have all their partitions checked.  For this reason, the default
behavior was to require the force option.  For example:

invalid vdev specification
use '-f' to override the following errors:
/dev/vdb does not contain an GPT label but it may contain partition
information in the MBR.

However in practice requiring the force option for this case is
counter-intuitively less safe.  The reason is because only the first
error is returned.  By passing the force option it will suppress
this first warning and potentially others you were not aware of.

Therefore this patch inverts the default behavior for non-GPT
formated disks (unformatted, MBR/EBR, etc).  If no GPT table is
detected and there is no file system detected on the provided
block device.  Then it will be assumed that block device is safe
to use.

Longer term it would be nice to see MBR/EBR scanning added to
the utilities.  This should be fairly straight forward to do.
However these days it's somewhat less critical because Linux
defaults to GPT partition tables for devices 2TB or larger.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2660
Closes #2274
2016-03-10 14:04:58 -08:00
Brian Behlendorf
7d11e37e55 Require libblkid
Historically libblkid support was detected as part of configure
and optionally enabled.  This was done because at the time support
for detecting ZFS pool vdevs had just be added to libblkid and
those updated packages were not yet part of many distributions.
This is no longer the case and any reasonably current distribution
will ship a version of libblkid which can detect ZFS pool vdevs.

This patch makes libblkid mandatory at build time and libblkid
the preferred method of scanning for ZFS pools.  For distributions
which include a modern version of libblkid there is no change in
behavior.  Explicitly scanning the default search paths is still
supported and can be enabled with the '-s' command line option.

Additionally making libblkid mandatory means that the 'zpool create'
command can reliably detect if a specified device has an existing
non-ZFS filesystem (ext4, xfs) and print a warning.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2448
2016-03-09 10:39:22 -08:00
Basil Crow
de0a9d7630 Illumos 5118 - When verifying or creating a storage pool, error messages only show one device
5118 When verifying or creating a storage pool, error messages
only show one device
Reviewed by: Adam Leventhal <adam.leventhal@delphix.com>
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Reviewed by: Boris Protopopov <boris.protopopov@me.com>
Approved by: Dan McDonald <danmcd@omniti.com>

References:
  https://github.com/illumos/illumos-gate/commit/75fbdf9
  https://www.illumos.org/issues/5118

Ported-by: kernelOfTruth kerneloftruth@gmail.com
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3567
2015-07-10 12:07:13 -07:00
Isaac Huang
c5656c4cfc Memory leak in make_root_vdev()
The newroot nvlist should be freed before returning.

Signed-off-by: Isaac Huang <he.huang@intel.com>
Signed-off-by: Chunwei Chen <tuxoko@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3264
2015-04-27 09:18:02 -07:00
Brian Behlendorf
7d90f569b3 Check all vdev labels in 'zpool import'
When using 'zpool import' to scan for available pools prefer vdev names
which reference vdevs with more valid labels.  There should be two labels
at the start of the device and two labels at the end of the device.  If
labels are missing then the device has been damaged or is in some other
way incomplete.  Preferring names with fully intact labels helps weed out
bad paths and improves the likelihood of being able to import the pool.

This behavior only applies when scanning /dev/ for valid pools.  If a
cache file exists the pools described by the cache file will be used.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Chris Dunlap <cdunlap@llnl.gov>
Closes #3145
Closes #2844
Closes #3107
2015-03-25 14:52:52 -07:00
Richard Yao
2fe5011008 Drive database update
The Intel DC S3500 and Intel DC S3700 are optimized to handle 4KB
sectors well despite of their 8KB page sizes, so we move them to a new
category for enterprise drives where they will receive ashift=12. They
are joined by the Intel 730 series, which uses the same disk controller,
as well as a San Disk enterprise drive. The drive IDs for these two were
obtained by myself with the drive_id utility. The drive ID for the 240GB
Intel 730 model was extrapolated from the drive ID for the 480GB model.

Lastly, we also add some Western Digital mobile drives.  ryuo in
\#zfsonlinux on freenode obtained "ATA     WDC WD2500BEVT-0" from
running drive_id on his own hardware. The additional drives in that
family were extrapolated from that identifer.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2601
2014-08-18 10:09:03 -07:00
Matthew Ahrens
9bd274ddd8 Illumos #4374
4374 dn_free_ranges should use range_tree_t

Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Max Grossman <max.grossman@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com
Reviewed by: Garrett D'Amore <garrett@damore.org>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Approved by: Dan McDonald <danmcd@omniti.com>

References:
  https://www.illumos.org/issues/4374
  https://github.com/illumos/illumos-gate/commit/bf16b11

Ported by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2531
2014-07-30 09:20:35 -07:00
John Albietz
5f3c101b8f Added INTEL SSD 530 Series
INTEL SSD 530 Series... SSDSC2BW24

Signed-off-by: John Albietz <inthecloud247@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2184
2014-05-19 16:57:14 -07:00
Richard Yao
c6e924fea8 Fix libblkid ZFS detection when making new pools
zfsonlinux/zfs@1db7b9be75 should have
fixed this, but this particular string was overlooked.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2288
2014-05-01 13:26:33 -07:00
Michael Kjorling
d1d7e2689d cstyle: Resolve C style issues
The vast majority of these changes are in Linux specific code.
They are the result of not having an automated style checker to
validate the code when it was originally written.  Others were
caused when the common code was slightly adjusted for Linux.

This patch contains no functional changes.  It only refreshes
the code to conform to style guide.

Everyone submitting patches for inclusion upstream should now
run 'make checkstyle' and resolve any warning prior to opening
a pull request.  The automated builders have been updated to
fail a build if when 'make checkstyle' detects an issue.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1821
2013-12-18 16:46:35 -08:00
Richard Yao
c8c8d1e7e5 Drive database update
Added:

Adata S396 (obtained from drive_id)
Apple MacBookAir3,1 SSD (obtained from drive_id)
Apple MacBookPro10,1 SSD (obtained from drive_id)
Intel 510 (obtained from drive_id)
Intel 710 (obtained from drive_id)
Intel DC S3500 (obtained from drive_id)
Netapp LUN (obtained from illumos user's sd.conf)
OCZ Agility 3 (obtained from drive_id)
OCZ Vertex (obtained from drive_id)
Samsung PM800 (obtained from drive_id)
Sandisk U100 (obtained from drive_id)
Sun Comstar (obtained from illumos user's sd.conf)

Notes:

1. The entries for the Intel DC S3500 were extrapolated from the 800GB
model's entry, which is "ATA     INTEL SSDSC2BB80".

2. The entires for the Intel 710 were extrapolated from the 120GG
model's entry, which is "ATA     INTEL SSDSA2BZ12".

3. The entires for the Intel 510 were extrapolated from the 250GB
model's entry, which is "ATA     INTEL SSDSC2MH25".

4. The entires for the Apple MacBookPro10,1 SSD were extrapolated from
the 512GB model's entry, which is "ATA     APPLE SSD SM512E". Google
searches suggest that this is a rebadged Samsung 830.

5. The entires for the Apple MacBookAir3,1 SSD were extrapolated from
the 128GB model's entry, which is "ATA     APPLE SSD TS128C". Google
searches suggest that this is a rebadged Kingston SSDNow V+ 100 (based
on Toshiba).

6. Sun Comstar is an iSCSI Target, so we cannot tell what the correct
sector size is through this method. We list it only for reference
purposes, but it is commented out. Similarly, it is not clear what the
right thing to do for Netapp is, so we comment it out.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1907
2013-12-02 14:07:26 -08:00
Brian Behlendorf
11cb9d773f Increase default udev wait time
When creating a new pool, or adding/replacing a disk in an existing
pool, partition tables will be automatically created on the devices.
Under normal circumstances it will take less than a second for udev
to create the expected device files under /dev/.  However, it has
been observed that if the system is doing heavy IO concurrently udev
may take far longer.  If you also throw in some cheap dodgy hardware
it may take even longer.

To prevent zpool commands from failing due to this the default wait
time for udev is being increased to 30 seconds.  This will have no
impact on normal usage, the increase timeout should only be noticed
if your udev rules are incorrectly configured.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1646
2013-10-22 10:25:51 -07:00
Richard Yao
3549721c9e Update drive database
Add Corsair Force GS drive (obtained from drive_id)
Add Kingston HyperX 3K (obtained from drive_id)
Add OCZ Vertex 4 drive (obtained from drive_id)
Add Samsung SM843T enterprise drive (obtained from drive_id)
Add entries for additional sizes of Intel 320/330/335/520 series
Add Cruical C400 (obtained from Illumos user's sd.conf)
Add Toshiba SSD (obtained from Illumos user's sd.conf)
Add Samsung's first SLC SSD (obtained from drive_id)
Add OCZ Core Series (obtained from drive_id)
Add Intel DC S3700 (obtained from drive_id)

Notes:

1. The drive identifer obtained for the Samsung SM843T was MZ7WD480. The
rest were extrapolated. The additional entries were checked with Google
to verify that such drives exist in the wild.

2. The additional entries for Intel drives were extrapolated from
existing entries. The additional entries were checked with Google to
verify that such drives exist in the wild.

3. The "ATA     C400-MTFDDAC512M" and "ATA     TOSHIBA THNSNH51" entries
are from the sd.conf of gcbirzan on freenode. Additional entries were
extrapolated from them and checked with Google.

4. I obtained the Samsung MCCOE64G entry from an actual drive. The
Samsung MCCOE32G entry was extrapolated from it and checked with
Google.

5. I obtained the SSDSC2BA10 from a 100GB Intel DC S3700 drive and
extrapolated the entries for the additional models.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1752
2013-10-09 09:16:23 -07:00
Richard Yao
bff32e0972 Implement database to workaround misreported physical sector sizes
This implements vdev_bdev_database_check(). It alters the detected
sector size of any device listed in a database of drives known to lie
about their physical sector sizes.

This is based on "6931570 Add flash devices' VID/PID to disk table to
advertising 4K physical sector size" from Open Solaris and on
sg_simple4.c from sg3_utils. About two dozen lines are taken from
sg_simple4.c, which is GPLv2 licensed. However, sg_simple4.c is
analogous to a Hello World program and is safe for us to use. We
requested that Douglas Gilbert, the author of sg_simple4.c, confirm that
this is the case. A cutdown version of his response is as follows:

```
I would consider a SCSI INQUIRY example using the Linux sg
driver interface (also written by me) as the equivalent of an
"hello world" program in C.
```

The database was created with the help of the freenode and ZFSOnLinux
communities.

Some notes:

1. The following drives both were confirmed to lie via reports in IRC
and they contain capacity information in their identifiers:

INTEL SSDSA2M080
INTEL SSDSA2M160
M4-CT256M4SSD2
WDC WD15EARS-00S
WDC WD15EARS-00Z
WDC WD20EARS-00M

The identifiers for different capacity models were extrapolated and
added under the assumption that those models also lie. Google was used
to verify that the extrapolated drive identifiers existed prior to their
inclusion.

2. The OCZ-VERTEX2 3.5 identifer applies to two drives that differ
solely in page size (and slightly in capacity). One uses 4096-byte pages
and the other uses 8192-byte pages. Both are set to use 8192-byte pages.
We could detect the page size by checking the capacity, but that would
unnecessarily complicate the code.

3. It is possible for updated drive firmware to correctly report the
sector size. There were reports of a few advanced format drives doing
that. One report stated that the vendor changed the identification
string while another was unclear on this. Both reports involved WDC
models.

4. Google was used to determine the size of pages in the listed flash
devices. Reports of 8192-byte pages took precedence over reports of
4096-byte pages.

5. Devices behind USB adapters can have their identification strings
altered. Identification strings obtained across USB adapters are
omitted and no attempt is made to correct for alterations made by USB
adapters when doing comparisons against the database. Two entries in the
Open Solaris database that appear to have been altered by a USB
adapter were omitted.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1652
2013-08-22 11:24:06 -07:00
Brian Behlendorf
8128bd89fb Fix hot spares
The issue with hot spares in ZoL is because it opens all leaf
vdevs exclusively (O_EXCL).  On Linux, exclusive opens cause
subsequent exclusive opens to fail with EBUSY.

This could be resolved by not opening any of the devices
exclusively, which is what Illumos does, but the additional
protection offered by exclusive opens is desirable.  It cleanly
prevents you from accidentally adding an in-use non-ZFS device
to your pool.

To fix this we very slightly relaxed the usage of O_EXCL in
the following ways.

1) Functions which open the device but only read had the
   O_EXCL flag removed and were updated to use O_RDONLY.

2) A common holder was added to the vdev disk code.  This
   allow the ZFS code to internally open the device multiple
   times but non-ZFS callers may not.

3) An exception was added to make_disks() for hot spare when
   creating partition tables.  For hot spare devices which
   are already opened exclusively we skip creating the partition
   table because this must already have been done when the disk
   was originally added as a hot spare.

Additional minor changes include fixing check_in_use() to use
a partition instead of a slice suffix.  And is_spare() was moved
above make_disks() to avoid adding a forward reference.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #250
2013-03-01 13:31:02 -08:00
Brian Behlendorf
eac4720465 Allow 'zpool replace' to use short device names
The 'zpool replace' command would fail when given a short name
because unlike on other platforms the short name cannot be
deterministically expanded to a single path.  Multiple path
prefixes must be checked and in addition the partition suffix
for whole disks is determined by the prefix.

To handle this complexity a zfs_strcmp_pathname() function was
added which takes either a short or fully qualified device name.
Short names will be expanded using the prefixes in the default
import search path, or the ZPOOL_IMPORT_PATH environment variable
if it's defined.  All posible expansions are then compared against
the comparison path.  Care is taken to strip redundant slashes to
ensure legitimate matches are not missed.

In the context of this work the existing zfs_resolve_shortname()
function was extended to consider the ZPOOL_IMPORT_PATH when set.
The zfs_append_partition() interface was also simplified to take
only a single buffer.

The vast majority of these changes rework existing Linux specific
code which was originally written to accomidate udev.  However,
there is some minimal cleanup which removes Illumos specific code.
This was done to improve readability but the basic flow and intent
of the upstream code was maintained.

These changes are the logical conclusion of the previos work to
adjust the 'zpool import' search behavior, see commit 44867b6a.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #544
Closes #976
2012-10-22 08:45:58 -07:00
Ned A. Bass
821b683436 Add vdev_id for JBOD-friendly udev aliases
vdev_id parses the file /etc/zfs/vdev_id.conf to map a physical path
in a storage topology to a channel name.  The channel name is combined
with a disk enclosure slot number to create an alias that reflects the
physical location of the drive.  This is particularly helpful when it
comes to tasks like replacing failed drives.  Slot numbers may also be
re-mapped in case the default numbering is unsatisfactory.  The drive
aliases will be created as symbolic links in /dev/disk/by-vdev.

The only currently supported topologies are sas_direct and sas_switch:

o  sas_direct - a channel is uniquely identified by a PCI slot and a
   HBA port

o  sas_switch - a channel is uniquely identified by a SAS switch port

A multipath mode is supported in which dm-mpath devices are handled by
examining the first running component disk, as reported by 'multipath
-l'.  In multipath mode the configuration file should contain a
channel definition with the same name for each path to a given
enclosure.

vdev_id can replace the existing zpool_id script on systems where the
storage topology conforms to sas_direct or sas_switch.  The script
could be extended to support other topologies as well.  The advantage
of vdev_id is that it is driven by a single static input file that can
be shared across multiple nodes having a common storage toplogy.
zpool_id, on the other hand, requires a unique /etc/zfs/zdev.conf per
node and a separate slot-mapping file.  However, zpool_id provides the
flexibility of using any device names that show up in
/dev/disk/by-path, so it may still be needed on some systems.

vdev_id's functionality subsumes that of the sas_switch_id script, and
it is unlikely that anyone is using it, so sas_switch_id is removed.

Finally, /dev/disk/by-vdev is added to the list of directories that
'zpool import' will scan.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #713
2012-06-01 08:55:14 -07:00